Final answer:
The initial statement is false; a decrease in cloud cover due to higher moisture is not a positive-feedback loop. A positive-feedback loop like the formation and rise of cumulus clouds due to convection involves processes that reinforce themselves, such as heat released by condensing water vapor causing more air to rise.
Step-by-step explanation:
The statement that a decrease in cloud cover due to higher moisture content in the atmosphere being an example of a positive-feedback loop is false. A positive-feedback loop in climatology refers to a process that amplifies or reinforces the initial change.
For example, the process of cumulus clouds rising due to convection is a real positive-feedback loop. Here, water vapor rises, cools, and condenses, releasing heat, which in turn causes more air to rise and form clouds. This reinforces the cycle, leading to more cloud formation, and can result in violent storms like hurricanes. The occurrence of drought due to changes in precipitation patterns is an entirely different scenario.